Wednesday, October 08, 2008

Wegener's hypothesis was drift,derived from notions long ago advancedlike Taylor's, who suggested that upliftwas caused by lunar gravity. It chancedthat centrifugal pseudoforce was bunkbut later research showed that drift was right:the ocean floor revealed reversals sunkin polarized crosswalks of magnetite.Dietz and Hess suggested seafloor ventsbring new basalt upwelling from each ridgewhile older crust is swallowed by the trenches.Galapagos, the land of Darwin's finchesis brand new, on the scale of continents.It makes you think we're living on the edge.

4 comments:

Good Morning, Tiel~ You've been so nice to me over the past year and I wanted to say thank you. It hasn't gone unnoticed. I wanted to give you this blog award which can be found "here" when you're ready to pick it up. I hope no one misses the opportunity to cross paths with you in their lifetime as it would be their loss if they shouldn't. You are a kind person who writes beautifully. Have a nice day.